KR20110090885A - Fastening device for a housing in a receiving device - Google Patents

Abstract

The present invention conceives a fastening device 1 for the fixed and detachable mounting of the housing 10 in the receiving device 2. The housing is mounted to the guide device and is prestressed in the transverse direction by the front tension device 4 by the force component z along the guide device and the force component against the guide device. The rear tensioning device 6 also produces a force component against the guide device for fastening the housing 10. The fastening device 1 separates the fastening effect from one another in several spatial directions, thus allowing large and flat sliding surfaces and support surfaces 24, 25, 34 to be exposed to only a slight stress and to have significant dimensional tolerances without compromising the fastening effect. , 35, 67, 71).

Description

Fastening device for housing in receiving device {FASTENING DEVICE FOR A HOUSING IN A RECEIVING DEVICE}

The present invention relates generally to a secure fastening of a fastening device, in particular a housing which is exposed to strong vibrations and shocks. Such a housing may, for example, be placed in a stationary frame or tray during flight and receive electronic equipment of an aircraft that is fastened to the stationary frame or tray by a fastening device.

Among the experts, fastening devices commonly used in rectangular housings that can slide in corresponding receiving devices are well known. At the rear end facing away from the operator, the housing has, for example, several recesses, to which the multiple spikes arranged in the slide-in direction are coupled so that the recess is at the rear end of the receiving device. Attached. The spike prevents lateral movement of the rear end of the housing as soon as the housing slides completely into the receiving device. In order to keep the spikes engaged and to fasten the housing, the front end of the housing is towed by, for example, a tensioning screw in the receiving device.

Although such fastening devices often satisfy the problem, the fastening devices have several disadvantages. Absorption of weight and inertial forces at the rear end occurs in the spikes by relatively small cross-sectional areas, whereby the cross-sectional areas can be exposed to high stresses when the material of the housing contacts the spikes. Moreover, the dimensions of the housing and the receiving device must be very strictly adhered so that the spikes do not have unwanted lateral play and do not engage with the associated recesses of the housing under excessive prestress.

In addition, the tension screw disposed at the front end of the receiving device may in fact apply a compressive force to the receiving device in the longitudinal direction sufficient for the fastening of the housing, but its fastening effect is insufficient in the horizontal direction across the slide-in direction, for that reason This is because this horizontal direction extends perpendicular to the direction of the force generated by the tension screw. In particular, in the case of very heavy loads and strong vibration or impact stress, the fastening effect may be insufficient.

An object of the present invention is to devise a fastening device which is suitable for accommodating heavy loads and adheres to low demands on dimensional tolerances. This problem is achieved by a fastening device having the features of claim 1.

The present invention devises a fastening device for fixed and detachable mounting of a housing in a receiving device having a guide device for supporting and guiding the housing. The receiving device may be a box or have a hollow space suitable for receiving the housing. However, the fastening device according to the invention does not need to surround the housing, but can also open and maintain the housing, for example using one side of the bottom element.

Preferably, if the receiving device is for example embedded in a wall, the receiving device is opened towards the front surface which can at least face the operator. Through the opening, the housing can be inserted into and removed from the receiving device by the operator. The operator can also perform operations such as actuation of a switch in the housing and reading of the instrument through the opening. The housing and the receiving device provided for receiving the housing may be a rectangular box.

The guiding device serves for the support of the housing, ie for receiving by the housing of a force acting in the direction of the guiding device. The force may act in a generally vertical direction and at least partially stem from gravity acting on the housing. However, other forces exerted by the tensioning device on the housing may overlap with gravity, which may also include components that do not face the horizontal component and / or the guiding apparatus. In general, however, at least one component of the force acting entirely on the housing will create a prestress towards the guide device. The direction of the force acting from the housing to the guide device is characterized in the vertical direction according to the preferred embodiment below, and the gravity of the housing overlying acts on the substantially horizontal guide device. However, the fastening device according to the invention can also be arranged in any other arrangement in the area, wherein the prestressing force between the housing and the guide device can be produced in other ways, for example with the aid of the tensioning device.

Moreover, the guiding device serves to guide the housing, and the guiding device only permits specific movement of the housing relative to the receiving device. The guiding device may, for example, have a flat surface, which is arranged at right angles to the vertical direction to allow movement of the equipment housing next to it in two horizontal dimensions.

The fastening device also has a carriage element disposed on the outer surface of the housing. The carriage element can be engaged and disengaged with the guide device and can slide in the engaged state with respect to the guide device. Preferably the carriage element is arranged at or below the bottom area of the housing and the housing is arranged in a vertical direction above the guide device. Unlike other arrangements, gravity therefore contributes already to the force required for fastening in the vertical direction.

The fastening device also has a first tensioning device disposed adjacent the front face of the housing. When the tensioning device is positioned at the position where the housing is disposed in the receiving device, it is installed to give the housing a prestress against the guide device at the front end of the housing.

The fastening device also has a second tensioning device disposed adjacent to the rear face of the housing to prestress the housing against the guide device in the slide-in position at the rear end. The prestress is preferably generated in the vertical direction via the compressive force exerted by the equipment housing against the guide device. Thereby, as long as the housing is disposed in the vertical direction above the guide device, the force exerted by the first and second tensioning devices enhances the gravitational effect acting on the housing.

The guide device may also have at least one guide rail defining a guide direction. The guide rail allows movement of the housing relative to the guide device in the guide direction and prevents movement across the guide direction toward one or both sides. There may also be two parallel guide rails, which in each case prevent movement of the housing towards the side across the guide direction. Thereby, one or several guide rails can form a linear guide of the housing which allows only one-dimensional movement of the housing in the guide direction. However, the linear guide may also allow for a play across the guide direction. This may be advantageous if the housing has, for example, a plug connector or similar connection element at the rear face which must be oriented towards the relevant fastening element before it can be joined.

Since the guiding direction is preferably approximately horizontal, also heavy loads can be moved or oriented in the guiding direction, for example by hand, without the gravitational component having to be overcome simultaneously.

Preferably, the at least one guide rail has a supporting surface arranged transversely. The support surface may have a wedge profile with an inclined plane, with the edges of the wedge preferably extending in the guiding direction. Through vertical extension, if the guide rail works with a suitable structure such as protrusions, recesses or skids on the bottom of the housing, for example, the guide rail will prevent or make it difficult to horizontally move the housing across the guide direction. Can be.

Advantageously, the same or second guide rail may have other support surfaces in the transverse direction, which may have a vertical plane extending in the guide direction with an inclination in the opposite direction. Both transverse support surfaces of one or two guide rails can be arranged side by side in the horizontal direction, and are associated with a guideway that is trapezoidal in cross section jointly, the legs formed from the transversely disposed support surfaces. do. The trapezoid is preferably symmetrical. In other words, the inclination of the plane inclined in the opposite direction has the same amount. Thus, it is achieved that equally large vertical forces produce equally large horizontal warp forces facing each other, whereby the force across the guide direction is avoided in the total amount.

Preferably, the cross section of the guide rail (s) is designed to taper upwards in the vertical direction. This may be the subject of a projection that is trapezoidal in cross section and narrower upwards, or a groove that is trapezoidal in cross section and wider upward. In both cases, a suitable protrusion on the housing, for example a skid extending below the bottom area of the housing in the guiding direction, may be brought into contact with both the transverse support surfaces from above without play in the setup state of the housing, thereby guiding the housing. Can be moved in a direction.

One or several guide rails may create a lateral guide. The housing can be mounted in a linear movement in the guiding direction. Preferably, the guiding direction is perpendicular to the horizontal direction, and thus substantially perpendicular, in which the component of the force exerted by the gravity and tensioning device can act. Thus, since the housing can be moved relatively easily in the horizontal direction in the detached state, the housing can be slid into or detached from the receiving device manually by an operator, for example, using a hand grip applied to the housing. . However, in the fastened state, a large vertical force ensures reliable seating of the housing on the guide device.

Preferably, the carriage element of the fastening device has at least one skid. The skids may extend in a straight line and allow for the arrangement of possible guide rails of the guiding device in the guiding direction. The skid can have a supporting surface arranged transversely, which forms a wedge that extends with a corresponding arrangement of carriage elements in the guiding direction of the guide rail. The carriage element may have additional support surfaces arranged transversely. At the same time, either skid may have two support surfaces arranged transversely or there may be a second skid having a second support surface arranged transversely.

The two support surfaces jointly form a guideway having a trapezoidal cross section, and the support surface corresponds to a trapezoidal leg in cross section. The guideway may form a protrusion that tapers downward and projects downward from the carriage element. In this way, undercut structures are avoided and setup of the carriage element on the guide device from above is allowed in the vertical direction. The carriage element may also have a groove that is trapezoidal in cross section and narrows upwards, in which a symmetrical trapezoidal shape is used. In a preferred embodiment both the carriage element as well as the guide device have in each case two support surfaces extending in the guide direction, which in each case form trapezoidal legs. In this way, the housing can be arranged in the guide device, the carriage element lying flat against the two support surfaces on the guide device in each case and generating some stress. Moreover, if necessary, an incorrectly inserted, ie laterally moved housing exerts a centering force on the carriage element.

Preferably, the two guide rails of the guide device and the two associated skids of the carriage element can be arranged apart from each other in the horizontal direction. Thus, a greater width is created between the supports and the transfer of lateral forces and torques from the housing to the guide device is facilitated and thereby the fastening is improved.

However, the guide rails or skids do not necessarily have flat and parallel support surfaces. Rather, it is also possible to allow the carriage element to be inserted into the guide device in a linear track as well as in the vertical direction. To this end, a tangential plane extending laterally is suitable for the guiding device and the carriage element, which can also be arranged by linear or cylindrical skids or rails or by several point shapes, for example spherical elements or rows. It can be realized by discontinuous rail sections. The tangent plane can slide on a plane or a portion thereof with a corresponding tangent plane slid up, such as on a cylindrical surface.

In one embodiment, one or both of the mutually adjacent support surfaces of the guide rail and the associated skid may extend in the guide direction and have a convex upwardly, eg cylindrical surface. Thus, only one substantially linear contact is achieved between the guide rail and the skid, but the guide device is also more concerned with incorrect angular orientation of the guide rail and / or skid with respect to the rotation about an axis parallel to the guide direction. Insensitive. Instead of the slide support, the carrier element and the guide device can also be mounted via the rotor or wheel in a rolling manner.

Preferably, the first tensioning device is disposed at the bottom edge of the front face of the housing overlying the guide device, where it is coupled to the guide device to create a prestress. In the front face, the tension device is also easily operated by the operator, especially if the front face of the housing is in an open state, for example to access a drive device applied to the housing.

In the case of the first tensioning device, it may be the subject of an inclined tensioning screw capable of transmitting traction, through which the housing and the guide device are pressed against each other. Since the actuation line of the force preferably extends in the transverse direction, the force is applied to the housing against the end stop, as well as a vertical component that prestresses the front end of the housing against the guide device. It has a horizontal component that can give.

The second tensioning device may have an inclined arrangement, the inclined arrangement having the ability to convert the force exerted on the housing in the horizontal direction, preferably the slide-in or guide direction, to a downward vertical force. The second tensioning device may have a first contact surface coupled to the guide device and a second contact surface coupled to the housing, which contact surfaces may come into contact with each other, and the preset end of the slide-in movement of the housing into the receiving device. It is possible to define a position and form an end stop. The end position of the housing provided by the contact with the first and second contact surfaces preferably corresponds to the desired position in the fastened state.

The first and / or second contact surface may have an inclination at the point of contact between the guide device and the housing, which exerts downward force in the vertical direction on the housing as a reaction to the horizontal force through the wedge effect. For example, a section of the housing may have a housing wedge element tapering backwards, ie extending laterally downward, which housing wedge element is at the midpoint of the slide-in movement of the housing into the receiving device. Make contact with the guide wedge element. In the process, the two wedge elements are not necessary but preferably have a flat and parallel surface area.

As with the support surface between the guide device and the carriage element, one or both of the adjoining contact surfaces of the second tensioning device are also not flat, but rather may have a convexly raised surface area, for example. An important point of the function based on the wedge effect of the second tensioning device is preferably the angular position of the tangent plane of the contact surfaces at the point of contact extending laterally in the transverse direction and inclined downward. With regard to the static coefficient of friction, too "steep" arrangements of the tangent planes (ie approximation to the xy plane) should be avoided. Thus, a relatively "flat" tangent plane (i.e., approximation to the xz plane) allows for strengthening of the force acting in the vertical direction through the wedge effect.

However, the wedge effect between the first and second contact surfaces is also appropriately inclined and inclined at the point of contact with the other participating surfaces, preferably as long as they form a tangent plane which is laterally and laterally facing in the transverse direction, for example cylindrical or spherical. With any other surface morphology, such as a raised surface. However, pointed elements may also impinge on flat or raised surfaces to achieve the same effect. However, it is desirable for two wedge elements to be used with parallel and flat surfaces to enable flat contact and to minimize wear and tear as well as stresses that occur.

In a preferred embodiment, the housing is disposed above the guiding device and the second tensioning device is arranged on the lower edge of the rear face of the housing, in contact with the guiding device to generate a compressive force therebetween.

According to the present invention, it is possible to provide a fastening device suitable for accommodating heavy loads and allowing for a low adherence to dimensional tolerances.

Preferred embodiments of the invention are shown in the drawings.
1 shows a housing in perspective view with electronic equipment fastened to only a partially shown receiving device according to the invention.
FIG. 2 shows the fastening device from FIG. 1 lying against the corresponding guide rail of the guide device in a perspective view showing only two skids from the carriage element.
FIG. 3 shows in enlarged sectional view one of the two inclined tension screws shown in FIG. 1 in the clamped state.
FIG. 4 shows the inclined structure shown in FIG. 1 in an enlarged cross sectional view.
FIG. 5 shows an enlarged sectional view of the skids of the carrier elements in engagement with each other as well as the guide rails of the guide device shown in FIG. 2.

1 shows a perspective view of a rectangular housing 10 which is fastened by a preferred embodiment of a fastening device 1 according to the invention. The housing 10 houses electronic equipment of an aircraft (not shown), and the electronic equipment is fastened to the frame 20. The housing is rigidly coupled to the frame and thus to the aircraft so that the mounting state of the housing may not be released when vibrations, shocks or other accelerations act on the frame. The housing 10 has a front wall 11, which includes various types of actuating devices 17 such as hand grips as well as plug connectors, switches, rotary knobs, indicator instruments, for example, which can be used by the operator. . The housing 10 is on a wall, not shown, which is disposed in an area in which the operator can stay and extends in the plane of the front wall 10.

The housing 10 is designed as a slide-in element, and also in this embodiment, the right side wall 12, the left side wall 13, which does not have an operating device and does not need to be accessed by the operator in the slide-in fastening state of the housing 10. ), A lead wall 14, a bottom wall 15, and a rear wall 16.

In the Cartesian coordinate system used identically in all figures, the y axis extends vertically from the bottom to the top. The z-axis extends in the horizontal slide-in or guide direction preset by the guide device from the front to the rear, and the x-axis extends from the operator's view of observing the front wall 11 in the horizontal direction from left to right.

The housing 10 is placed on the receiving device 2 clearly shown in FIG. 2 and fastened to the receiving device. The frame 20 has a right longitudinal beam 22 and a left longitudinal beam 23, which are joined to each other by several cross braces 21. The frame 20 is firmly coupled to the structure of the aircraft, not shown so that its configuration is similar to the rail line, and the parallel longitudinal beams 22, 23 are configured as guide rails and are placed under the longitudinal beams. 21 is maintained at a preset distance. At the upper edges facing each other, the longitudinal beams 22, 23 have flat surfaces or slopes 24 and 25, respectively, which are inclined at an angle of 45 degrees and extend over the entire length, each of which is a carriage element. A support surface for guiding the displaceable mounting of the right skid 32 or the left skid 33 is formed. Of the support surfaces of FIG. 2, only the rearmost section of the left support surface 25 is visible.

Skids 32 and 33 have a profile that is trapezoidal in cross section, that is to say a leg at a 45 degree angle to the surface of skids 32 and 33 oriented along the coordinate plane. The skids 32, 33 have sliding surfaces 34, 35 which are provided for flat contact with the support surfaces 24, 25 of the guide rails 22, 23 corresponding to the respective cases.

Skids 32 and 33 are screwed together with the bottom wall 15 of the housing. In cooperation with the support surfaces 24, 25 of the guide rails 22, 23, the skid defines a horizontal guide direction corresponding to the z direction. On the other hand, as shown in FIG. 2, if the skid lies flat against the guide rails 22, 23, the support surface will skid 32, 33 and thus the housing relative to the receiving device 2 in the x direction. Prevent horizontal lateral movement of the (10).

However, through the transverse arrangement of the support surfaces 24, 25 and the sliding surfaces 34, 35, the skids 32, 33 and thus the housing 10 are upwards with respect to the receiving device, ie in the positive y direction. Is achieved. This is true with respect to the transversely fixed support surfaces 24, 25 or the sliding surfaces 34, 35, the guide rails 22, 23 taper upwards or the skids 32, 33 taper downwards and positive y. This is achieved in that there is no undercut in the path of travel of the housing in the direction.

The fastening device 1 also has at least a first tensioning device 4 and at least a second tensioning device 6, in each case in FIG. 2, the first tensioning device 4 has a respective longitudinal beam 22, It is arranged at the front end of 23 and the second tensioning device 6 is arranged at the rear end.

Each first or front tensioning device 4 receives an inclined tension screw 40 shown in detail in FIG. 3, which is inclined to the housing 10 in the positive z direction and the negative y direction. Installed for stressing purposes. Thus, on the other hand, the gravitational effect of the housing 10 which forces the skids 32, 33 against the guide rails 22, 23 is enhanced at the front end of the housing 10. In addition, in the case of strong acceleration, a large number of gravity may be needed as prestress to prevent the skid from being lifted from the guide rail through vibration or shock. Moreover, the inclined tensioning screw is positive for the housing 10 and the skids 32, 33 coupled to the housing against the end stops formed by the second or rear tensioning device 6 shown in FIG. 4. Apply prestress in the z direction.

FIG. 3 shows, in an enlarged cross-sectional view, one of the inclined tension screws 40 shown in FIG. 2. The inclined tension screw 40 has a shaft 41 provided with a male thread, which is coupled to the guide rail 22 via a hinge 43. Since the axis of rotation of the hinge 34 extends in the x direction, the shaft 41 can be pivoted in the yz plane. The shaft 41 has a cylindrical outer surface 47 provided with a female thread line and a flange 44, and a flange is provided with a handle element 45. The handle element facilitates the operator to loosen or tighten the screw nut by hand. At the lower end, the screw nut 42 has a pipe section 46, which extends outward as a continuation of the cylindrical outer surface 47. Inside, the pipe section 46 has a larger inner diameter than the shaft 41 and there is no thread, so there is a ring-shaped gap 51 between the pipe section 46 and the shaft 41.

The gap 51 is installed to receive the arm 48 of the connector element 49, which is coupled to the housing 10 via a screw 50. By tightening the screw nut 42, ie by the movement of the screw nut towards the hinge 43, the arm 48 is received in the gap 51 and clamped between the shaft 41 and the pipe section 46, The threaded nut thereby forces the housing 10 substantially in the direction of the shaft, ie in the positive z and negative y directions. With the screw nut 42 loosened, the pipe section 46 does not have access to the arm 48. In this state, the inclined tension screw 40 can be pivoted about the axis of rotation of the hinge 43. As shown in FIG. 2, the inclined tension screw 40 can be pivoted in a horizontal position and also further downward. In this position, since the inclined tension screw is not fixed in the path of the skids 32 and 33, the skid can be taken out of the receiving device 2 in the negative z direction or inserted into the receiving device. A second inclined tension screw of the same kind is arranged at the front end of the left guide rail 23.

4 shows an enlarged cross-sectional view of a second or rear tensioning device 6 arranged at the rear end of the left guide rail 23. Like the front tensioning device 4, the rear tensioning device 6 is also present at the rear ends of both guide rails 22, 23 in a double mirror image design embodiment which acts similarly. Hereinafter, only the rear tensioning device 6 disposed with respect to the left guide rail 23 will be described. The rear tensioning device 6 has an inclined arrangement comprising a guide wedge element 61 and a housing wedge element 62.

The guide wedge element 61 is in the form of a rectangular element, has a protrusion 64 which is disposed at its rear end and faces forward, and is mounted on the left guide rail 23 by screws 63. The projection 64 has a transversely flat first contact surface 65 facing downward, which passes from the rounded edge 66 extending in the x direction to the vertical surface area 67.

The inclined arrangement also includes a housing wedge element 62 which is screwed together with the bottom wall 15 of the housing 10. The housing wedge element may also be mounted directly on the corresponding skid 33. The housing wedge element 62 also has a rectangular shape, but at its rear upper edge it has a surface or slope that falls laterally backwards, ie downwards in a positive direction at an angle of 45 degrees. This surface or slope forms a second contact surface 71, which is flat and disposed parallel to the first contact surface 65 to provide for installation to the first contact surface. At the lower end, the second contact surface 71 has the edge 72 crossed over to the vertical front face 73.

The rear tension device 6 operates as follows. On the one hand, the rear tensioning device forms an end stop which prevents the housing 10 mounted on the skids 32, 33 from moving in the positive z direction past the preset end position, which is the contact surface 65. This is achieved when the housing wedge element 62 contacts the guide wedge element 61 such that 71 lies flat against each other. The wedge effect created by the inclined position of the contact surfaces 65, 71 results in a force acting downward, i.e. in the negative y direction, at the rear end of the housing 10, which acts as an extruding force. It is transmitted to the rear section of the guide rails 22, 23 through the rear end of 32, 33. This force is determined to reinforce the gravity of the housing 10 already acting so that, for example, when the vibration, shock, or acceleration acts on the housing 10, the housing can also be held quickly against the receiving device together with the gravity.

In this way, the front tensioning device in the form of an inclined tensioning screw 40 contributes to the vertical fixing of the housing 10 to the receiving device 2 directly at the front end as well as indirectly at the rear end, while The force component produced by the photographic tension screw 40 is "turned" in the positive z direction by the oblique arrangement of the rear tensioning device 6 facing downward in the negative y direction.

FIG. 5 shows, in enlarged cross-section, a carriage element 3 mounted on top by skids 32, 33, which are placed on the guide wall 22, 23 as well as the bottom wall 15 of the housing 10. For an improved illustration of the substantial functional structure, the relatively wide middle section between the skids 32, 33 is omitted. As already described in connection with FIG. 2, the skids 32, 33 lie against the guide rails 22 or 23 through oppositely inclined transverse surfaces at an angle of 45 °. This arrangement creates an advantage according to the invention in a manner that provides linear guidance with respect to the carriage element 3 together with the housing 10 and permits movement in the z direction without horizontal transverse movement in the x direction.

Thus, with the lateral guidance achieved, the inclined tension screw 40 does not need to provide any safety function for the force in the x direction. Thereby, the significant weakening point of the inclined tension screw is eliminated, which provides a sufficient fastening effect in the y and z directions substantially through the force transmitted in the longitudinal direction of the shaft 41. However, the arm 48 shown in FIG. 4 is disposed in the section of the ring-shaped gap 51 between the pipe section 46 and the shaft 41 that extends substantially in the x direction, thus easily in the x direction. Since it can be lowered, the housing 10 can only be insufficiently secured in the x direction. Moreover, a force in the x direction at the tension screw 40 transmits a bending moment to the hinge 43, which must bear upwards against the hinge. However, since the inclined tension screw 40 is released in the x direction through the linear guide of the carriage element 3, the hinge 43 only needs to absorb the traction and compression forces in the yz plane.

Compared to the fastening of the housing through the spikes, the present invention provides a greater force that appears between the guide rails 22 and 23 and the skids 32 and 33 as well as between the guide wedge element 61 and the housing wedge element 62. Distribute to the surface. Through a different arrangement of inclined surfaces, fixing of the housing 10 is nevertheless achieved in all three dimensions only through the force exerted by the tensioning screw 40.

According to the present invention, the fastening effect is on the one hand a pair of elements of the guide rails / skids 22, 23, 32, 33 as well as the various directions spatially divided by the guide wedge elements / housing wedge elements 61, 62 on the other hand. Is provided. Guide rails 22 and 23 and skids 32 and 33 define the position in the x direction, while tension screw 40 defines the prestress in the negative y direction. Also through the positive force component in the z direction produced by the screw 40, the degree of freedom in the z direction is removed by placing the housing 62 relative to the guide wedge element 61. Moreover, the wedge arrangements 61, 62 also create a force in the negative y direction at the rear end of the housing. In addition, the spatially displaced force in the negative y direction also cancels out the angular acceleration or torque about the x axis, whereas the torque about the y and z axes is equal to the prestressing force in the y direction acting only at one end. Together they can be absorbed in advance via the guide rails 22, 23.

As another advantage, the present invention has been proved to be insensitive to dimensional variations of individual elements. While the fastening spikes or recesses provided to receive these fastening spikes must maintain their dimensions and distance very accurately in several dimensions, the individual surfaces of the elements of the described embodiment are of larger dimensions without compromising the functionality of the fastening device 1. May have deviations. For example, the structure shown in FIG. 5 of two guide rails 22, 23 and two skids 32, 33 having an angled surface at an angle of 45 ° is provided in the receiving device 2 when the housing 10 is inserted. In this case the carriage element 3 is automatically centered. However, the angle can also be chosen in other words, whereby in each case a symmetrical angled face on both guide rails as well as on both skids is preferred in order to prevent the generation of lateral forces in the x direction.

For example, if the height y or lateral position x of the guide rails 22, 23 or the skids 32, 33 deviates from the position provided by error, this impairs the described function of the fastening device 10. Without causing only an error displacement of the carriage in the x and y directions and hence of the position of the housing. Both the inclined arrangement as well as the inclined tensioning screw 40 of the rear tensioning device 6 can continue to fully fulfill their function in case of error deviation of the carriage element 3.

Thus, the tension screw 40 can be sufficiently adjusted in the y direction and the z direction by, for example, lowering by proper pivoting of the hinge 43 and tightening of the screw nut 42, and the arm 48 here is approximately Engage in a ring-shaped gap that extends locally in the x direction and thus provides sufficient clearance. Therefore, the present invention takes advantage of the fastening effect of the tension screw 40 which is perceived as insufficient in the x direction as a clearance for precise positioning of the housing 10.

The effect of the tilting arrangement of the rear tensioning device 6 is not impaired by slight positional deviation of the housing 10 in the x direction, and a slight deviation in the y direction only causes the contact point to be easily displaced, thus simultaneously z To slightly displace the housing in the However, as mentioned above, this is balanced in the front tensioning device 4 by proper pivoting and tightening of the tensioning screw 40.

For the reasons mentioned, the tensioning device 4, 6 not only equalizes the positional deviation of the housing 10 without loss of function, but also its own manufacturing tolerances with respect to the wedge element 61, 62 or the tensioning screw 40. It is resistant to

The present invention conceives a fastening device 1 for the fixed and detachable mounting of the housing 10 in the receiving device 2. The housing is mounted to the guide device and is preloaded transversely by the front tensioning device 4 by the force component along the guide device and the force component against the guide device. The rear tensioning device 6 also produces a force component against the guide device for fastening the housing 10. The fastening device 1 separates the fastening effect from one another in several spatial directions, thus allowing large and flat sliding surfaces and support surfaces 24, 25, 34 to be exposed to only a slight stress and to have significant dimensional tolerances without compromising the fastening effect. , 35, 67, 71).

Claims (15)

In the fastening device 1 for the fixed and detachable mounting of the housing 10 in the receiving device 2,
Guide devices 22 and 23 provided in the receiving device 2 for supporting and guiding the housing 10;
It can be slidably mounted in the guiding direction z on the guiding devices 22, 23, is disposed on the outer surface 15 of the housing 10, and is in engagement with and disengagement with the guiding devices 22, 23. At least one carriage element 3 which can be switched,
First tensioning device 4 disposed adjacent the front face 11 of the housing 10 to stress the housing in a slide-in position at the front end with respect to the guide devices 22, 23. Wow,
A second tensioning device 6 disposed adjacent the rear face 16 of the housing 10 to stress the housing in the slide-in position at the rear end with respect to the guide devices 22, 23.
Fastening device. The method of claim 1,
The guide device has at least one guide rail 22, 23 defining a guide direction z.
Fastening device. The method of claim 2,
The at least one guide rail 22, 23 has at least one support surface 24, 25 arranged transversely.
Fastening device. The method of claim 3, wherein
The guide device has at least second supporting surfaces 24, 25 arranged in the transverse direction, and both supporting surfaces 24, 25 form a guideway having a trapezoidal cross section.
Fastening device. The method of claim 2,
The guide rails 22 and 23 perform lateral guidance
Fastening device. The method of claim 2,
The guide direction z extends in the horizontal direction
Fastening device. The method of claim 1,
The carriage element 3 has at least one skid 32, 33 which has at least one support surface 34, 35 arranged transversely.
Fastening device. The method of claim 7, wherein
The carriage element 3 has at least transversely arranged second support surfaces 34, 35, both support surfaces 34, 35 forming a guideway having a trapezoidal cross section.
Fastening device. The method of claim 1,
The outer surface on which the carriage element 3 is arranged is the bottom region 15 of the housing 10.
Fastening device. The method of claim 1,
The first tensioning device 4 comprises an inclined tensioning screw 40.
Fastening device. The method of claim 1,
The first tensioning device 4 is arranged at the lower edge of the front face 11 of the housing 10.
Fastening device. The method of claim 1,
The second tension device 6 comprises an inclined arrangement, the inclined arrangement having a first contact surface 65 connected to the guide device and a second contact surface 71 connected to the housing.
Fastening device. The method of claim 12,
The first contact surface 65 and the second contact surface 71 are parallel and flat surfaces, the first contact surface 65 is the surface area of the guide wedge element 61 connected to the guide devices 22, 23, and the second The contact surface 71 is the surface area of the housing wedge element 62 connected to the housing 10.
Fastening device. The method of claim 1,
The second tensioning device 6 is arranged at the lower end of the rear face 16 of the housing 10.
Fastening device. The method of claim 1,
The first tensioning device 4 and the second tensioning device 6 stress the housing against the guide devices 22, 23 in the vertical direction y.
Fastening device.

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